Sherman m



. M. PIERCE. A ELECTRIC ROTARY AND REVOLUBLE AIRCIRCULATING. FAN.

110. 534,481. Patented Feb. 19, 1895.

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- UNITED STATE-s lPATENT OFFICE.

SHERMAN M. PIERCE, C F KANSAS CITY, MISSOURI, ASSIGNOR OF ONE-HALE TO CI-IAUNCEY S. COLTON, OF SAME PLACE.

ELECTRIC ROTARY AND RE'VOLUBLE AIR-CIRCULAT'INGFN.

SPECIFICATION forni-ing part of LettersV Patent No. 534,481, dated February 19, 1895. Application led October 20! 1894. Serial No. 526,503. (No model.)

Io lating fan to which the invention that is here-,

in described pertains is of that class in which the fan wheel is rotatory around an axis, andv is, together with the motor which rotates the'v fan wheel, revoluble Varound another axis,

. 15 which axis of revolution is at a right angle or` approximatelyat a right angle to said axis of rotation, and which fan wheel by its rotatory motion forces a current of air from its immediate vicinity, andby its revoluble 'motion zo with the motor, in a circular orbital path,

forces said current lot' air radially froml its circular orbit, in every direction substantially in a line with its axis of rotation, or in other words, in every direction substantially in its z5 plane of revolution; and the leadingobject of my invention is to provide improved, novel,

simple and effective means, involving a new mode of operation, for simultaneously revolv ing the motor and fan wheel, by utilization 3o of the current of air passing to th'e fan wheel;

and to this end and object my invention consists in its main feature in a combination, with a fan wheel and motor of the class or type referred to, of a vane or vanes ixedin position 3 5 or positions as the case maybe, relatively to the motor, and in the. trajectory orl path of the air current, as said current is passing to the fan wheel, whereby said vane or vanes,

while not interfering with the rotation of the 4o fan wheel, will be carried around with the fan wheel in its orbital movement, andalways within the trajectory ofthe air current passing either to or fromfthe fan Wheel, as the case may be, and which air current is the 4 5 source of propulsive energy continually acting on the vane or vanes, while the fan wheel is being rotated to force the motor and fan wheel simultaneously around in their respective circular orbits on the axis of revolution.

5o The different improvements and different combinations which have been evolved in carrying out the main objects of my`invention, the separate and collective operations of lthe parts comprised in the invention, the new mode of operation and useful results arising 55 therefrom are hereinafter described, andthe new combinations are made the subject matter of claims hereto appended. In the accompanying drawings all my improvements are shown as constructed and em- 6o bodied in a preferred way, and in the best Way nowV known to me. Obviously however, while still within the purview of my invention, some or. all ofthe parts may differ in their construction, in their organization, their 6 5 -disposition-for co-action, and be embodied in other forms and ways from whatl have shown in said drawings, in whichl Figure l is a sectional elevationin the line l-l in Fig. 2, 'showing the electric motor in 7o section, and one of the fan Wheels and a vane in elevation; and Fig. 2, a top plan.

' The electric motor A comprises field magnets B, yoke or keeper C, liber washers D, core studs E,.pole pieces F, armature G, armature 7 5 shaft g, bearing bar g for the armature, through bolts g2 for supports for the bearing I bars g', for the insulating sleeves g3.and for the brushes g4.

`The electric motor shown is'of ordinary con- 8o struction, and need not be any herein described.

' A preferred way of revolubly suspending the motor and thereby the fan wheels is shown more fully at Fig. 1, 'in which a spindle H rising from a 85 l wooden or other suitable base I passes through vthe yoke C, 'and vhas a conical and suitably hardened upper end which forms a pivotal point for an inverted'stepj in a bearing bridge or plate J, which extends from one of the field 9o i magnets to the other at their upper ends.' A

ypreferred way of making the electrical connections is also shown at Fig. '1, in which the Wires la, lo', connected in any source of electrical supply, (not shown,) areconnected, the 9 5, one, lo, with a ring commutatorl, and the other,

k', with a ring commutator l', both of which ring commutators are supported on the base I, concentric with Veach other and -with the f spindle H. A spring plate or brush m, prefroof erably of copper, fixed at one end thereof in a recess c below one of the eld magnets and in the lower surface of the yoke C, and insulated therefrom by a liber block n, rests at its other end in constant contact with the ring Z, as the motor revolves on the vertical spindle Il, and a similar spring plate or brush m xed at one end thereof in a recess c2 below the other field `magnet and in the lower surface of the yoke C, and insulated therefrom by a fiber block n', rests at its other end in constant contact with the ring Z. The brushes lm, m are connected with the field magnets as shown.

The fan wheels P, each formed of a series of radial fans p, are xed one to each of the outer ends of the armature shaft, g, and are rotated by and with the armature shaft. Each fan p transversely thereof is oblique to its plane of rotation with the armature shaft and armature, and its obliquty is in such direction that when the fan wheels are rotated by the motor driven by the electric current, in Ithe direction shown by the arrows a: at both figures of the drawings, each fan wheel will force a current of' air outwardly from the motor located between said fan wheels, or in Vother words, the fan wheels will each force a current of air outwardly and in an opposite direction to the current of air forced outwardly by the other fan wheel.

Two propeller vanes R are shown in the drawings, for giving the revoluble motion in horizontal planes to the motor and fan wheels, as hereinafter described. A vane R is located a short distance from each fan wheel, and, as shown at Fig. 2, on that side of each fan wheel which confronts the other fan wheel, so that the propeller vane for each fan wheel will be within the field of air force, or path of the current of air flowing toward its adjacent fan wheel, and which current or air force arises from the induced How of air to supply the partial vacuum produced by the action of the fan wheel in forcinga current of air outwardly from its other side.A

In order that both vanes R may operate to revolve the motor and fan wheel in the same direction, they are arranged to protrude in opposite directions from the motor, as shown at Fig. 2; The inner end of each vane'R is fixed to the motor by bolting it to the adja cent end of a bolt g2 or otherwise as may be preferred. The force action of the current of air, in the direction, merely indicated by the dot line arrows at Fig. 2, as it approachesf the fan wheels, will 'act on the vanesR and thereby tend to force them around, and thus revolve the motor and impart to the fan wheels a movement of translation, or revoluble motion in a circular orbit. This orbital or revoluble motion of the fan wheels will cause them to force the current of air produced by their rotary motions in every radial direction from their orbital paths. The two vanes R will also impart a more rapid rate of revolution to the fan wheels than will one vane. It will be understood, however, that the rate of speed of the motor and fan wheels inclined or vertical support.

in revolving, should not beton rapid, while the rate of speed of the fan wheels in rotating should be very rapid.

As it is shown in the drawings, the machine is designed to be held on or by a support, in the central part of the room, and to distribute air in motion in every direction horizontally and radially from the circular orbital path of the fan wheels. It will be evident, however, that they may be used either singly or in any desired number, in various-locations in a chamber, room, hall, or other place where desired. e

There being two of the fan wheels forcing currents of air in opposite directions, the cu rrent of air in any given direction from the machine will be much more nearly continuous, and hence much more effective and satisfactory than with only one fan Wheel. IVith afan wheel on each end of the armature shaft, said shaft will be in equilibrium in its bearings, and will not be drawn or forced endwise of itself and against itsbeariugs, as will be the case if only one fau wheel is used, or in other words, with the two fan wheels in a pair on the same shaft, and adapted to receive the air between them, the pressure of the air upon one wheel endwise of the shaft will be counterbalanced by the equal and opposite pressure of the air upon the other wheel, and thus the endwise strains upon the shaft will be counterbalauced and the bearings of the shaft relieved of strains. It will be evident, however', that one fan wheel with its co-acting vane R, will impart the revoluble motion tothe motor and fan wheel, and hence I consider my invention, in this respect, as broadly including the combination of the propeller vanes with either one or two fan wheels. It will also be evident that electrical motors of different types may be used with my main improvements, and that other than electrical motors may be used therewith. Hence I consider my inventionLin this respect, as broadly including the combination of the propeller vanes with the fan wheel or fan wheels and any motor to which they can be applied within the current of air flowing toward the fan or fans for the same obj ect and purpose for which they are used in my invention. It will also be evident'that the machine may be pivotally suspended from a ceiling or other horizontal,

I-lence I consider my invention as broadly including the propeller vane or vanes located within the current of air tlowingrtov the fan wheel or wheels, and in combinationwith the fan wheel or fan wheels and motor when suspended in any manner in which they have the same object and purpose for which they are used in my invention,

What I claim as new, and desire to secure by Letters Patent, is-

1. In a rotatory and revoluble air circulat- TOO IIO

ing fan, in combination, substantially as heretatable wthvthe motor armature, or rotatable part or shaft of the motor and a propeller vane fixed to revolve with the motor and fan wheel, and located within the current of air flowing toward or leading to the fan wheel, whereby saidcurrent of air is made to revolve the propellerV vane, the motor and fan wheel.

2. In a rotatory and revoluble aircirculat` ing fan, in combination, substantially as hereinbefore described, an electric motor, a pivotal support on' which the motor revolves, fan wheels, xed one to each end of the 'motor armature shaft to rotate therewith, and pro-rv peller vanes fixed to revolve with 'the motor and fan wheels and located, one within the current of air tlowing toward or leading to each fan wheel, whereby the currents of air induced by the fan wheels'are made to revolve the propeller vanes, the motor andlfan wheels. f

3. Ink a rotatory and revoluble air circulating fan, in combination substantially as hereinbefore described', a base,.a vertical spindle supported on said base, an electric motor revolubly mounted on said spindle, fan wheels fixed one to each end of the armature shaft to rotate therewith, and propeller vanes fixed to revolve w-ith the motor and fan wheels,

and located, one within the current of air .flowing toward or rleading to each fan wheel,

whereby the currents Aof air induced by the fan wheels are made to revolve the propeller vanes, the motor and fan wheels.

4. The combination with a fan wheel, a shaft by which the fan wheel is carriedaround in a circular orbit, and means for rotating said shaft and with it the fan -wheelof a propeller vane fixed to revolvewith the fan wheel, but not to rotate therewith, and located in the current of airV passingY to the fan wheel, whereby said current of air is made to revolve the propeller vane and the fan'wheel,V

substantially as described.

5; The combination with an electric motor, and its rotatory part or shaft, of a fan wheel on each end of` said rotatory shaft, each fan wheel adapted to force a current of air in an opposite .direction to its fellow fan wheel, whereby the endwise strains upon the shaftv are counterbalanced and the bearings of the shaft relieved of strain, substantially as described. l

In testimony whereof I aix my signature in presence of two witnesses.

SHERMANhl. PIERCE. lVitnesses:

` JOHN B. CoL'roN,

J oHN B. CoLToN, Jr. 

